CN106123077A - The range hood of a kind of band air quantity regulation and air quantity control method thereof - Google Patents
The range hood of a kind of band air quantity regulation and air quantity control method thereof Download PDFInfo
- Publication number
- CN106123077A CN106123077A CN201610704120.9A CN201610704120A CN106123077A CN 106123077 A CN106123077 A CN 106123077A CN 201610704120 A CN201610704120 A CN 201610704120A CN 106123077 A CN106123077 A CN 106123077A
- Authority
- CN
- China
- Prior art keywords
- pressure transducer
- accessory fan
- range hood
- air quantity
- blade
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A kind of range hood of band air quantity regulation, including main air blower and smoke pipe, it is characterized in that: also include master controller and the accessory fan being arranged on smoke pipe, face of blade at accessory fan is provided with the first pressure transducer, vacuum side of blade at accessory fan is provided with the second pressure transducer, the signal output part of the first pressure transducer and the second pressure transducer is used for being connected with the signal input part of master controller, and master controller controls the motor speed of accessory fan according to the signal received from the first pressure transducer and the second pressure transducer.This range hood is by installing pressure transducer the face of blade of accessory fan and the back side, master controller regulates the motor speed of accessory fan according to the signal of the pressure transducer on two sides, it is made automatically to match with range hood main air blower, maintain total blast volume normally more than exhaust fume range, thus smoke absorption effect can be effectively improved.It addition, the air quantity control method regulation of this range hood is very convenient, regulating effect good.
Description
Technical field
The present invention relates to a kind of range hood, especially relate to range hood and the Boiler pressure control thereof of the regulation of a kind of band air quantity
Method.
Background technology
Common duct can affect resistance to flow output due to the switch conditions of other user's range hoods, thus causes user side to be inhaled
The actual flow of lampblack absorber is continually changing, and the phenomenon that flue gas can not arranged even occurs.At present, the motor speed of a lot of range hoods
Excursion is less, it is impossible to tackle harsh outlet regulating so that feel when user uses that smoke absorption effect is poor.At present, existing
Have in technology and disclose the various range hood with air quantity regulation, such as Patent No. ZL 201310273983.1 (Granted publication
Number for CN 103353136 B) Chinese invention patent disclosed in " a kind of range hood with air quantity regulatory function and
Control system and control method ", the control system of this range hood includes that power module, motor drive module, system control mould
Block, wherein system control module include main control chip, from control chip and sensor group, main control chip is connected with sensor group, electric
Machine drives module to be made up of SPM, motor drive ic, sampling and protection circuit, sensor group detection range hood
Running status also inputs to main control chip, and main control chip determines that airflow value is sent to motor after judging range hood running status
Drive module, thus drive direct current generator to work.Although, above-mentioned control system and control method solve can not in prior art
Consider kitchen environment and the common flue problem on the impact of smoke absorption effect so that range hood not only reduces noise but also save
Can environmental protection, but its control process realizes only by the rotating speed controlling the internal main air blower motor of range hood, air quantity tune
Joint effect is relatively poor.
Summary of the invention
First to be solved by this invention technical problem is that for above-mentioned prior art present situation, it is provided that one can will assist
The range hood of the band air quantity regulation that the rotational speed regulation of blower fan extremely matches with range hood main air blower.
Second to be solved by this invention technical problem is that for above-mentioned prior art present situation, it is provided that a kind of regulation side
Just the air quantity control method of the range hood of blower fan total blast volume band air quantity regulation more than normal exhaust fume range, is maintained.
The present invention solves the technical scheme that above-mentioned first technical problem used: the fume-exhausting of this band air quantity regulation
Machine, including main air blower and the smoke pipe being connected to main air blower air outlet, it is characterised in that: also include master controller and be arranged on described
Accessory fan on smoke pipe, described accessory fan is axial flow blower, and the face of blade at described accessory fan is provided with first
Pressure transducer, the vacuum side of blade at described accessory fan is provided with the second pressure transducer, described first pressure transducer and
The signal output part of the second pressure transducer be used for be connected with the signal input part of described master controller, described master controller according to
From the motor speed of the signal described accessory fan of control that the first pressure transducer and the second pressure transducer receive.
Preferably, this range hood also include the first reference voltage regulator and the second reference voltage regulator, first
Comparator and the second comparator, the signal output part of described first pressure transducer and the signal of the first reference voltage regulator are defeated
Go out end to be connected with first input end, second input of described first comparator respectively, the signal of described second pressure transducer
The signal output part of outfan and the second reference voltage regulator respectively with the first input end of described second comparator, second defeated
Enter end to be connected, the outfan of described first comparator and the outfan of the second comparator all with the input of the signal of described master controller
End is connected.
Further preferably, the first described pressure transducer and the second pressure transducer are arranged on same blade.
Pressure transducer can have multiple choices, it is preferable that the first described pressure transducer and the second pressure transducer
Use piezoelectricity sensor film or piezoquartz or piezoelectric ceramic piece.
Further preferably, described accessory fan at least two and before and after be sequentially connected in series.
Accessory fan can have multiple mounting structure, it is preferable that described accessory fan includes the blower fan suitable with smoke pipe
Shell, is provided with the fixed support being used for fixing on wall on described blower housing, and the two ends of described blower housing connect
On the corresponding ports of smoke pipe.
The present invention solves the technical scheme that above-mentioned second technical problem used, the Boiler pressure control side of this range hood
Method includes controlling as follows process:
1., the pressure P of face of blade during measured in advance range hood holding normal smoke evacuation flow1Pressure with vacuum side of blade
P2Between minimum differntial pressure Δ P；
2. the ambient windstream change, in the first pressure transducer and the second pressure transducer sensing smoke pipe, and obtains accordingly
The pressure P of face of blade1Pressure P with vacuum side of blade2；
3., P is judged by master controller1-P2The relation of difference and Δ P；
If 4. P1-P2>=Δ P, keeps the existing rotating speed of accessory fan motor or gear；
If 0 < P1-P2< Δ P improves rotating speed or gear by main controller controls accessory fan；
If P2-P1>=0, improve rotating speed or gear by main controller controls accessory fan, or change accessory fan electricity
Machine.
Compared with prior art, it is an advantage of the current invention that: this range hood passes through to install accessory fan on smoke pipe, and
Installing pressure transducer at face of blade and the back side of accessory fan, master controller can be according to the letter of the pressure transducer on two sides
Number regulate the motor speed of accessory fan so that it is automatically match with range hood main air blower, maintain total blast volume can be just
Often more than exhaust fume range, thus it is effectively improved smoke absorption effect.It addition, the air quantity control method regulation of this range hood is the most square
Just, regulating effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the structural representation after the embodiment of the present invention removes main air blower shell and accessory fan shell；
Fig. 3 is the smoke pipe decomposing schematic representation being provided with accessory fan of the embodiment of the present invention；
Fig. 4 is the structural representation of the accessory fan of the embodiment of the present invention；
Fig. 5 is the structural representation of another angle of accessory fan of the embodiment of the present invention；
Fig. 6 is the structured flowchart of the air quantity control method of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figures 1 to 5, the range hood of the regulation of the band air quantity in the present embodiment includes main air blower 1, smoke pipe 2 and auxiliary
Helping blower fan 3, wherein, smoke pipe 2 is connected to the air outlet of main air blower 1, and accessory fan 3 is for axial flow blower and is serially connected on smoke pipe 2, this
In embodiment, accessory fan 3 has two and is front and back sequentially connected in series.Accessory fan 3 includes blade 31, blower housing 32 and fixes
Support 33, the two ends of blower housing 32 are connected on the corresponding ports of smoke pipe 2, and blade 31 is located in blower housing 32, fixing
Frame 33 is arranged on blower housing 32, and during installation, fixed support 33 is fixed on body of wall.Further, since accessory fan is hidden in
In the furred ceiling of kitchen, therefore can be at blower housing 32 outer wrapping acoustical cotton lamp acoustic damping materials, to reduce noise.
The front of each the most a piece of blade of accessory fan 3 31 is provided with the first pressure transducer 5, at same blade
The back side of 31 is provided with the second pressure transducer 6, and the first pressure transducer 5 is used for sensing the pressure in accessory fan 3 front of correspondence
Power, the second pressure transducer 6 is used for sensing the pressure at accessory fan 3 back side of correspondence, when flow velocity difference in flue, assists wind
The pressure differential that machine 3 face of blade and the back side are formed is the most different.Pressure transducer can have multiple choices, and voltage inductance can be used to answer
Thin film, piezoquartz or piezoelectric ceramic piece.
As shown in Figure 6, the range hood in the present embodiment also include master controller the 4, first reference voltage regulator 7,
Two reference voltage regulator the 8, first comparator 9 and the second comparators 10.Wherein, the signal output part of the first pressure transducer 5
With the signal output part of the first reference voltage regulator 7 respectively with first input end, second input of described first comparator 9
Being connected, the signal output part of the second pressure transducer 6 and the signal output part of the second reference voltage regulator 8 compare with second respectively
The relatively first input end of device 10, the second input are connected, and the outfan of the first comparator 9 and the outfan of the second comparator 10 are equal
It is connected with the signal input part of master controller 4.
The air quantity control method of this range hood includes controlling as follows process:
1. the pressure P of face of blade when, measured in advance range hood keeps normal smoke evacuation to measure1Pressure with vacuum side of blade
P2Between minimum differntial pressure Δ P；
2., the first pressure transducer 5 and the second pressure transducer 6 sense the ambient windstream change in smoke pipe, and mutually deserved
Pressure P to face of blade1Pressure P with vacuum side of blade2；
3., P is judged by master controller 41-P2The relation of difference and Δ P；
If 4. P1-P2>=Δ P, namely positive pressure is higher than backside pressure, it is believed that now accessory fan is effectively improved
The smoke evacuation ability of range hood, therefore keeps the existing rotating speed of accessory fan motor or gear；
If 0 < P1-P2< Δ P, now shows that flue outlet comparison of resistance is big, and air-flow velocity ratio is relatively low, and actual exhaust smoke level compares
Little, cigarette, the effect of accessory fan to be played, it is therefore desirable to by main controller controls accessory fan are run in user side
Improve rotating speed or gear, to strengthen smoke evacuation ability.
If P2-P1>=0, now mean that accessory fan becomes resistance, is rotated by blowing, it is therefore desirable to pass through master controller
Control accessory fan and improve rotating speed or gear.Certainly, now it is also likely to be accessory fan motor damage and causes rotating,
The most then need to change the motor of accessory fan, to adapt to the smoke evacuation of whole flue.
Knowable to above-mentioned control process, master controller judges auxiliary by the output signal comparing two pressure transducers
Blower fan, in the state of flue, changes the rotating speed of accessory fan the most accordingly, promotes normal smoke evacuation ability and is unlikely to become
Resistance so that accessory fan can match with main air blower, maintenance total blast volume is more than normal exhaust fume range, thus improves fume-exhausting
Effect.
The foregoing is only the preferred embodiment of the present invention, it is noted that for those of ordinary skills,
Without departing under the principle premise of the present invention, the present invention can be carried out multiple remodeling or improvement, these are regarded as the present invention
Protection domain within.
Claims (7)
1. a range hood for band air quantity regulation, including main air blower (1) and the smoke pipe (2) that is connected to main air blower air outlet, its
Being characterised by: also include master controller (4) and the accessory fan (3) being arranged on described smoke pipe, described accessory fan (3) is
Axial flow blower, is provided with the first pressure transducer (5) in blade (31) front of described accessory fan (3), at described auxiliary wind
Blade (31) back side of machine (3) is provided with the second pressure transducer (6), described first pressure transducer (5) and the second pressure and passes
The signal output part of sensor (6) is used for being connected with the signal input part of described master controller, and described master controller (4) basis is from the
The signal that one pressure transducer (5) and the second pressure transducer (6) receive controls the motor speed of described accessory fan (3).
The range hood of band air quantity the most according to claim 1 regulation, it is characterised in that: also include the first reference voltage
Actuator (7) and the second reference voltage regulator (8), the first comparator (9) and the second comparator (10), described first pressure passes
The signal output part of sensor (5) and the signal output part of the first reference voltage regulator (7) respectively with described first comparator (9)
First input end, the second input be connected, the signal output part of described second pressure transducer (6) and the second reference voltage are adjusted
The signal output part of joint device (8) is connected with first input end, second input of described second comparator (10) respectively, and described the
The outfan of one comparator (9) and the outfan of the second comparator (10) all with the signal input part phase of described master controller (4)
Even.
The range hood of band air quantity the most according to claim 1 regulation, it is characterised in that: the first described pressure transducer
(5) and the second pressure transducer (6) is arranged on same blade (31).
The range hood of band air quantity the most according to claim 1 regulation, it is characterised in that: the first described pressure transducer
(5) and the second pressure transducer (6) uses piezoelectricity sensor film or piezoquartz or piezoelectric ceramic piece.
The range hood of band air quantity the most according to claim 1 regulation, it is characterised in that: described accessory fan (3) is extremely
Rare two are the most front and back sequentially connected in series.
The range hood of band air quantity the most according to claim 1 regulation, it is characterised in that: described accessory fan (3) includes
The blower housing (32) suitable with smoke pipe (2), is provided with consolidating of being used for fixing on wall on described blower housing (32)
Fixed rack (33), the two ends of described blower housing (32) are connected on the corresponding ports of smoke pipe (2).
7. the air quantity control method of range hood described in a claim 1, it is characterised in that include controlling as follows process:
1., the pressure P of face of blade during measured in advance range hood holding normal smoke evacuation flow1Pressure P with vacuum side of blade2It
Between minimum differntial pressure Δ P；
2. the ambient windstream change, in the first pressure transducer (5) and the second pressure transducer (6) sensing smoke pipe, and mutually deserved
Pressure P to face of blade1Pressure P with vacuum side of blade2；
3., P is judged by master controller (4)1-P2The relation of difference and Δ P；
If 4. P1-P2>=Δ P, keeps the existing rotating speed of accessory fan motor or gear；
If 0 < P1-P2< Δ P improves rotating speed or gear by main controller controls accessory fan；
If P2-P1>=0, improve rotating speed or gear by main controller controls accessory fan, or change accessory fan motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610704120.9A CN106123077B (en) | 2016-08-19 | 2016-08-19 | A kind of range hood and its air quantity control method adjusted with air quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610704120.9A CN106123077B (en) | 2016-08-19 | 2016-08-19 | A kind of range hood and its air quantity control method adjusted with air quantity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106123077A true CN106123077A (en) | 2016-11-16 |
| CN106123077B CN106123077B (en) | 2019-02-15 |
Family
ID=57273696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610704120.9A Active CN106123077B (en) | 2016-08-19 | 2016-08-19 | A kind of range hood and its air quantity control method adjusted with air quantity |
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| Country | Link |
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| CN (1) | CN106123077B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975842A (en) * | 2017-05-27 | 2018-05-01 | 宁波方太厨具有限公司 | Common duct smoke evacuation system and control method |
| CN109028440A (en) * | 2018-08-01 | 2018-12-18 | 中国能源建设集团广东省电力设计研究院有限公司 | The control method of supply air system, booster stations and supply air system |
| CN110186089A (en) * | 2019-05-19 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of series connection two fans type range hood and its flow control methods |
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| CN102022766A (en) * | 2010-07-23 | 2011-04-20 | 杨肇 | Calculus power low-carbon range hood |
| CN203454246U (en) * | 2013-08-28 | 2014-02-26 | 西安耀北光电科技有限公司 | Novel kitchen fume purifying device |
| CN105465860A (en) * | 2015-12-25 | 2016-04-06 | 宁波方太厨具有限公司 | Actual flow measuring device of extractor hood and measuring method of actual flow measuring device |
| CN205227466U (en) * | 2015-12-17 | 2016-05-11 | 王帅 | Wind pressure control type range hood |
| CN205481201U (en) * | 2015-12-21 | 2016-08-17 | 思达文电器（深圳）有限公司 | Intelligent lampblack absorber |
| CN206001573U (en) * | 2016-08-19 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of range hood adjusting with air quantity |
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| US20110053488A1 (en) * | 2008-01-18 | 2011-03-03 | Mpc Inc. | Control system for exhaust gas fan system |
| CN102022766A (en) * | 2010-07-23 | 2011-04-20 | 杨肇 | Calculus power low-carbon range hood |
| CN203454246U (en) * | 2013-08-28 | 2014-02-26 | 西安耀北光电科技有限公司 | Novel kitchen fume purifying device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975842A (en) * | 2017-05-27 | 2018-05-01 | 宁波方太厨具有限公司 | Common duct smoke evacuation system and control method |
| CN107975842B (en) * | 2017-05-27 | 2023-08-18 | 宁波方太厨具有限公司 | Public flue smoke discharging system and control method |
| CN109028440A (en) * | 2018-08-01 | 2018-12-18 | 中国能源建设集团广东省电力设计研究院有限公司 | The control method of supply air system, booster stations and supply air system |
| CN109028440B (en) * | 2018-08-01 | 2024-03-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Air supply system, booster station and control method of air supply system |
| CN110186089A (en) * | 2019-05-19 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of series connection two fans type range hood and its flow control methods |
| CN110186089B (en) * | 2019-05-19 | 2024-02-20 | 宁波方太厨具有限公司 | Series double-fan type range hood and flow control method thereof |
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| Publication number | Publication date |
|---|---|
| CN106123077B (en) | 2019-02-15 |
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